Dental hygiene tool



FIG. 1 is a front view showing the invention;

FIG. 2 is a top view of the invention of FIG. 1;

FIG. 3 is a bottom view of the invention of FIG. 1;

FIG. 4 is a right side view of the invention of FIG. 1;

FIG. 5 is a left side view of the invention of FIG. 1; and,

FIG. 6 is a rear view of the invention of FIG. 1.

The broken lines shown in FIGS. 1 and 6 represent portions of the dental hygiene tool that form no part of the claimed design. 

CLAIM The ornamental design for a dental hygiene tool, substantially as shown and described. 